S
M
T
W
T
F
S
26
59°
34°
27
59°
46°
28
59°
39°
29
59°
36°
30
N/A
1
66°
48°
2
55°
44°
3
53°
38°
4
52°
37°
5
51°
35°
6
49°
35°
7
52°
36°
8
53°
39°
9
57°
40°
10
60°
42°
11
58°
44°
12
59°
45°
13
53°
40°
14
52°
41°
15
53°
45°
16
59°
45°
17
56°
44°
18
56°
45°
19
55°
45°
20
55°
46°
21
56°
46°
22
55°
45°
23
55°
42°
24
56°
42°
25
54°
41°
26
54°
41°
27
55°
45°
28
56°
47°
29
56°
42°
30
55°
43°
31
55°
42°
1
56°
42°
2
55°
43°
3
55°
43°
4
56°
44°
5
56°
43°
6
57°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Balloch
Balloch's May 2026 forecast shows daily high temperatures ranging from 49° to 66°, with overnight lows between 35° and 48°. The average high for May is 55° with an average low of 42°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Balloch. See also: June | July | August.